Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Fort Union Formation  | |
|---|---|
| RT | Bullion Creek Formation |
| Colorado | |
| K-T boundary | |
| Lebo Member | |
| Ludlow Member | |
| Montana | |
| North Dakota | |
| Paleocene | |
| Sentinel Butte Formation | |
| South Dakota | |
| Tongue River Member | |
| Tullock Member | |
| Upper Cretaceous | |
| Wyoming | |
| SN | Includes Lebo Shale Member, Tongue River Member, Tullock Member, Ludlow Member, Sentinel Butte Member. NW Colorado, Montana, North Dakota, NW South Dakota, and Wyoming. Indexed with ages as applicable. |